JP2006504729A - Cosmetic composition with reduced adhesion - Google Patents

Abstract

A cosmetic composition in the form of an oil-in-water emulsion comprising a high concentration of a water-soluble skin benefit agent is provided. The compositions herein have reduced sticking associated with high concentrations of water soluble skin benefit agents. A cosmetic composition comprising a crosslinked copolymer that reduces tack associated with the composition, wherein the crosslinked copolymer is i) 35% to 94.5% by weight of the crosslinked copolymer of a water soluble anionic acrylic monomer, ii) A composition comprising 5% to 65% by weight of the crosslinked copolymer of a water-soluble nonionic acrylate monomer, and iii) 0.005% to 0.5% by weight of the crosslinked copolymer of a bifunctional monomer crosslinking agent, Further comprises more than 10% by weight of the composition of a water soluble skin benefit agent. The compositions of the present invention exhibit good stability, excellent feel characteristics, and reduced stickiness or tackiness when topically applied to the skin.

Description

  There is provided a cosmetic composition in the form of an oil-in-water emulsion comprising a high concentration of a water-soluble skin benefit agent in combination with a cross-linked copolymer. The cosmetic composition has increased skin moisture retention and reduced adhesion.

  A variety of cosmetic compositions have been used to treat dry skin. These compositions typically contain a lipophilic humectant that moisturizes the skin by an occlusion that inhibits or reduces water loss. These compositions can additionally contain other water soluble skin benefit agents such as vitamins and humectants. The addition of these components can increase skin moisturization or can cause other effects on the skin, such as desquamation.

  However, it is difficult to produce a cosmetic composition containing ingredients that do not leave a sticky residue on the skin. These compositions lose water by evaporation and skin absorption when applied to the skin. The loss of moisture will increase the effective concentration of humectants, water soluble skin benefit agents and thickeners, and in turn increase the viscosity of the dried film and the adhesion of the residue. This problem may be exacerbated by increasing the relative amount of water soluble skin benefit agent in the composition. Thus, cosmetic compositions with high concentrations of water-soluble skin benefit agents are generally desirable due to their high skin benefits, but such compositions are too sticky to be accepted by consumers.

  In the past, the increased stickiness caused by high concentrations of water soluble skin benefit agents has been mitigated using a variety of methods. For example, US Pat. No. 4,389,418 discloses the use of a quaternary ammonium compound as the only emulsifier in an oil-in-water emulsion to reduce sticking. US Pat. No. 5,804,205 discloses the use of a combination of quaternary ammonium compounds and hydrophobic polymeric microspheres having an average particle size of less than 50 μm to reduce sticking. Lipophilic copolymer thickeners having lipophilic and hydrophilic monomer units are useful for solving adhesion problems of skin compositions such as PCT International Publication No. WO 02 / 058665A1 and US Pat. No. 6,433,061B1. It was described. These compositions reduce adhesion, but may have inferior touch properties such as resistance when applied topically. In addition, some of these copolymer compositions may be susceptible to salt shrinkage due to the salt present on the skin. This often results in a “breaking” of the composition on the skin and a watery and / or greasy sensation.

  Accordingly, it is desirable to provide a cosmetic composition comprising a high concentration of a water-soluble skin benefit agent that has good moisturizing properties when applied topically to the skin. It is further desirable to provide a cosmetic composition comprising a high concentration of a water soluble skin benefit agent that is less sticky when applied topically to the skin. Finally, it is desirable to provide a cosmetic composition comprising a high concentration of a water-soluble skin benefit agent that improves consumer aesthetics and has low resistance.

A cosmetic composition in the form of an oil-in-water emulsion, wherein the continuous aqueous phase comprises 0.1 to 2% by weight of the composition of a crosslinked copolymer,
i) 35% to 94.5% by weight of the crosslinked copolymer of a water soluble anionic acrylic monomer;
ii) 5% to 65% by weight of water-soluble nonionic acrylate monomer of the crosslinked copolymer; and iii) 0.005% to 0.5% by weight of bifunctional monomer crosslinking agent of the crosslinked copolymer;
A cosmetic composition is provided, wherein the composition further comprises more than 10% by weight of the composition of a water-soluble skin benefit agent. The compositions of the present invention exhibit good stability, excellent feel characteristics, and reduced stickiness or tackiness when topically applied to the skin.

  As used herein, “water-soluble” is defined in the European Pharmacopoeia Monograph (ISSN 1013-5294, Technical Guide for the Elaboration of Monographs, Third Edition, pages 86-87). As such, it includes substances that dissolve in water at a level of at least 3.3% by weight at 25 ° C.

  These and other features, aspects, and advantages of the present invention will be apparent to those of ordinary skill in the art upon reading the present disclosure.

All weights, measurements and concentrations herein are measured throughout the composition at 25 ° C. unless otherwise specified.
Unless otherwise indicated, all percentages of compositions referred to herein are weight percentages and all ratios are weight ratios.
Unless otherwise indicated, all molecular weights herein are weight average molecular weights.
Unless otherwise indicated, the contents of all references referred to in this text are hereby incorporated by reference in their entirety.
Except where specific examples of actual measured values are presented, numerical values referred to herein should be considered to be given the word “about”.

  The cosmetic composition herein comprises a continuous aqueous phase comprising a crosslinked copolymer. The crosslinked copolymer comprises 35% to 95%, preferably 50% to 70%, by weight of the crosslinked copolymer, a water soluble anionic acrylic monomer, 5% to 65% water soluble nonionic acrylate monomer, And 0.005% to 0.5% by weight of a bifunctional monomeric crosslinker.

Suitable water soluble anionic acrylic monomers include acrylic acid, methacrylic acid or mixtures thereof.
Suitable water-soluble nonionic acrylate monomers include acrylamide, methacrylamide, N-vinyl pyrrolidone, water-soluble hydroxy-substituted acrylic esters or methacrylic esters or mixtures thereof.
Suitable bifunctional monomer crosslinkers include di-, tri- and tetraethylenically unsaturated materials such as methylene bisacrylamide, divinyl pyrroline and allyl (meth) acrylate or mixtures thereof.

Examples of commercially available copolymer compositions suitable for use herein include copolymer compositions and CIBA Specialty Chemicals commercially available from BASF under the trade name Luvigel® EM. Copolymer compositions available under the trade name Salcare SC91 from Chemicals (Macclesfield, UK).
The crosslinked copolymer comprises from 0.1% to 2% by weight of the composition. Preferably, the cross-linked copolymer comprises 0.2% to 1.5%, more preferably 0.3% to 1.0% by weight of the composition.

  Surprisingly, it has been found that these cross-linked copolymers significantly reduce the sticking associated with compositions containing a high proportion of water soluble skin benefit agent. Without being bound by theory, these copolymers are believed to reduce adhesion by forming a film on the outer surface of the composition when applied to the skin. The coating is formed by a copolymer composition that is not perceivable by the consumer and traps water, and a water-soluble skin benefit agent contained therein between the skin and the coating, which makes the composition sticky to the user. It is thought to prevent feeling. Although the exact mechanism is not understood, the presence of water-soluble nonionic acrylate monomers in the system is believed to be important in achieving this effect. These polymers are believed to enable film formation by providing a plasticizing effect when suspended in water. This film formation can also reduce resistance and enhance consumer aesthetics when the compositions herein are topically applied.

The composition of the present invention has a water solubility of greater than 10%, preferably greater than 10% and up to 40%, more preferably 12-30%, even more preferably 17-27%. Contains skin benefit agents. Water soluble skin benefit agents useful herein include vitamin B ₃ compounds, wetting agents, amino acids, vitamin C compounds, panthenol and derivatives, or mixtures thereof. Incorporating more than 10% of a water-soluble skin benefit agent into the present invention enhances skin benefit properties by providing reduced water loss and / or providing desquamation, keratolysis and rejuvenation effects when applied topically. .

One class of water-soluble skin benefit agents according to the present specification includes vitamin B ₃ compounds. As used herein, “vitamin B ₃ compound” is a compound having the formula:

（式中、Ｒは−ＣＯＮＨ₂（即ち、ニコチン酸アミド）、−ＣＯＯＨ（即ち、ニコチン酸）又は−ＣＨ₂ＯＨ（即ち、ニコチニルアルコール）である）、それらの誘導体、及び前記のいずれかの塩を含む。前記ビタミンＢ₃化合物の典型的な誘導体としては、ニコチン酸の非血管拡張性エステル、ニコチニルアミノ酸、カルボン酸のニコチニルアルコールエステル、ニコチン酸Ｎ−オキシド及びニコチン酸アミドＮ−オキシドを含むニコチン酸エステル類が挙げられる。

Wherein R is —CONH ₂ (ie, nicotinamide), —COOH (ie, nicotinic acid) or —CH ₂ OH (ie, nicotinyl alcohol), derivatives thereof, and any of the foregoing Of salt. Exemplary derivatives of the vitamin B ₃ compound include nicotinic acid including non-vasodilatory esters of nicotinic acid, nicotinyl amino acids, nicotinyl alcohol esters of carboxylic acids, nicotinic acid N-oxide and nicotinamide N-oxide. Examples include esters.

Suitable esters of nicotinic acid, C ₁ ~C _22, preferably C ₁ -C _16, more preferably include nicotinic acid esters of C ₁ -C ₆ alcohols. These alcohols are preferably linear or branched, cyclic or acyclic, saturated or unsaturated (including aromatic), and substituted or unsubstituted. Esters are preferably non-vasodilatory. As used herein, “non-vasodilatory” means that the ester does not cause a normally visible flushing reaction after application of the composition to the skin (such compounds are not visible to the naked eye). Although unrecognizable vasodilation may occur, the majority of the general population do not experience a visible flushing reaction). Non-vasodilatory esters of nicotinic acid include tocopherol nicotinate and inositol hexanicotinate, with tocopherol nicotinate being preferred.

  Another class of water-soluble skin benefit agents according to the present invention includes humectants. Suitable wetting agents useful herein include polyhydric alcohols, sodium-2-pyrrolidone-5-carboxylate (NaPCA), guanidine; glycolic acid and glycolates (eg, ammonium and quaternary alkyl ammonium); Lactic acid and lactate (eg ammonium and quaternary alkyl ammonium); malic acid, other forms of aloe vera such as aloe vera (eg aloe vera gel); hyaluronic acid precursors and derivatives thereof ( For example, glucosamic acid and its salt derivatives such as sodium hyaluronate); lactamide monoethanolamine; acetamide monoethanolamine; urea and mixtures thereof.

  A preferred wetting agent is a polyhydric alcohol from the viewpoint of moisturizing enhancement. Suitable polyhydric alcohols for use in the present invention include propylene glycol, dipropylene glycol, polypropylene glycol, polyethylene glycol and their derivatives, sorbitol, hydroxypropyl sorbitol, erythritol, threitol, pentaerythritol, xylitol, glucitol, mannitol. Hexylene glycol, butylene glycol (eg, 1,3-butylene glycol), hexanetriol (eg, 1,2,6-hexanetriol), trimethylolpropane, neopentyl glycol, glycerin, ethoxylated luglycerin and propoxyl And polyalkylene glycols containing glycerinated glycerin and more preferably alkylene polyols and their derivatives. Preferred polyhydric alcohols of the present invention are polyhydric alcohols having 3 to 9 carbon atoms in the molecule. Suitable polyhydric alcohols include glycerin, butylene glycol, propylene glycol, dipropylene glycol, polyethylene glycol and their derivatives, hexanetriol, ethoxylated glycerin and propoxylated glycerin, or mixtures thereof. More preferred for use in the present invention is glycerin.

  A further class of water-soluble skin benefit agents according to the present invention comprises panthenol or its derivatives. Panthenol and its derivatives include D-panthenol ([R] -2,4-dihydroxy-N- [3-hydroxypropyl)]-3,3-dimethylbutamide), DL-pantenol, calcium pantothenate , Royal jelly, pantethine, pantothein, panthenyl ethyl ether, bangamic acid, pyridoxine, pantoyl lactose, and vitamin B complex.

  A further class of water-soluble skin benefit agents according to the present invention includes amino acids and derivatives thereof. Suitable amino acids for use herein include both D- and L- isomers of naturally occurring amino acids. Suitable examples include L-isomers of serine, alanine, proline and hydroxyproline.

  An additional class of water-soluble skin benefit agents according to the present invention comprises vitamin C compounds. Examples of vitamin C compounds include water-soluble ascorbate and esters thereof. Vitamin C compounds are particularly useful as whitening agents. Suitable examples include magnesium ascorbyl phosphate and sodium salt of monophosphate of ascorbic acid, commercially available as Stay-C50 from Roche Vitamins Europe Ltd.

  The compositions of the present invention are generally in the form of an emulsion and preferably have a product viscosity of at least about 4,000 mPa.s. s, and preferably from about 4,000 to about 300,000 mPa.s. s, more preferably from about 8,000 to about 250,000 mPa.s. s and particularly preferably from about 10,000 to about 200,000 mPa.s. s and more particularly preferably from about 10,000 to about 150,000 mPa.s. s (25 ° C., undiluted, Brookfield RTV viscometer 0.52 rad / s (5 rpm) TC spindle and heliopath stand).

  The cosmetic compositions herein are in the form of an emulsion in which one or more oil phases are present in an aqueous continuous phase, each oil phase being a single oil component or a mixture of oil components in a mixed or uniform form. including. Different oil phases contain different substances or combinations of different substances. The total concentration of the oil phase component in the composition of the present invention is typically about 0.1% to about 60%, preferably about 1% to about 30%, more preferably about 3% to about 20%, and most Preferably, it is 5% to 15%.

  In a preferred embodiment, the oil phase is preferably oily, such as natural or synthetic oils selected from mineral oils, vegetable oils, and animal oils, fats and waxes, fatty acid esters, fatty alcohols, fatty acids, and mixtures thereof. Contains components. Preferred for use herein are, for example, saturated and unsaturated aliphatic alcohols such as behenyl alcohol, cetyl alcohol and stearyl alcohol and hydrocarbons such as mineral oil or petrolatum.

  The composition of the present invention may comprise at least one silicone phase. The silicone phase can include one or more silicone components such as silicone oils, gums, and mixtures thereof. The silicone oil phase, or each silicone phase, generally comprises from about 0.1% to about 20% of the composition, preferably from about 0.2% to about 10%, more preferably from about 0.3% to about 5%. Including.

Silicone components can be liquid, including linear, branched, and cyclic silicones. Suitable silicone oils useful in the present invention include polyalkyl siloxane fluids, polyaryl siloxane fluids, lycones containing cyclic and linear polyalkyl siloxanes, polyalkoxylated silicones, amino and quaternary ammonium modified silicones, poly Examples include alkylaryl siloxanes or polyether siloxane copolymers, and mixtures thereof. Silicone oils can be volatile or non-volatile. The weight average molecular weight of silicone oil is generally less than about 200,000. Suitable silicone oils have a molecular weight of about 100,000 or less, preferably about 50,000 or less, more preferably about 10,000 or less. It is preferred that the silicone oil is selected from silicone oils having a weight average molecular weight in the range of about 100 to about 50,000, preferably about 200 to about 40,000. Typically, the viscosity of the silicone oil is from about 0.65 to about 600,000 mm ² . s ⁻¹ , preferably about 0.65 to about 10,000 mm ² . It is in the range of s ^-1 . Viscosity can be measured with a glass capillary viscometer as described in Dow Corning Corporate Test Method CTM0004 (July 29, 1970). Polydimethylsiloxanes suitable for use herein include, for example, SF and Viscasil® series from General Electric Company and Dow Corning from Dow Corning. Those available as the Dow Corning 200 series. Even more effective are essentially non-volatile polyalkylaryl siloxanes such as those having a viscosity of about 0.65 to 30,000 mm ² at 25 ° C. It is polymethylphenylsiloxane which is s- ¹ . These siloxanes are commercially available, for example, as SF 1075 methylphenyl fluid from General Electric Company or as 556 Cosmetic Grade Fluid from Dow Corning. Cyclic polydimethylsiloxanes suitable for use in the present invention are those having a cyclic structure incorporating from about 3 to about 7 (CH ₃ ) ₂ SiO moieties.

  Another class of silicone components suitable for use in the silicone oil phase herein includes polyether siloxane copolymers. Examples of polyether siloxane copolymers include polydiorganosiloxane-polyoxyalkylene copolymers containing at least one polydiorganosiloxane moiety and at least one polyoxyalkylene moiety. A suitable polydiorganosiloxane-polyalkylene copolymer is the trade name Belsil® and gold from Wacker-Chemie GmbH (Geschaftsbereich S, Postfach D-800 Munich 22). Th.Goldschmidt Ltd. (commercially available from Tego House, Victoria Road, Ruislip, Middlesex, HA40 YL) under the trade name Abil®, for example Belsil (Registered trademark) 6031 and Abil (registered trademark) B88183. Particularly preferred copolymer fluid blends for use in the present invention include Dow Corning DC5225C having the CTFA designation dimethicone / dimethicone copolyol. Can be mentioned.

  In a preferred embodiment, the silicone oil is selected from dimethicone, decamethylcyclopentasiloxane, octamethylcyclotetrasiloxane, phenylmethicone, and mixtures thereof.

The silicone component can also include silicone gum. As used herein, the term “silicone gum” includes high molecular weight silicones having a weight average molecular weight greater than about 200,000, preferably from about 200,000 to about 4,000,000. Non-volatile polyalkyl and polyaryl siloxane gums are included. In a preferred embodiment, the silicone oil phase comprises silicone gum or a mixture of silicones containing silicone gum. Typically, the viscosity of the silicone gum is about 1,000,000 mm ² s ⁻¹ or more at 25 ° C. Silicone gums include dimethicone described in "Noll, Walter, Chemistry and Technology of Silicones" (Academic Press New York, 1968). SE30, SE33, SE54, and SE76 of “General Electric Silicone Rubber Product Data Sheets” also describe silicone gum. Specific examples of silicone gums include polydimethylsiloxane, (polydimethylsiloxane) (methylvinylsiloxane) copolymer, poly (dimethylsiloxane) (diphenyl) (methylvinylsiloxane) copolymer, and mixtures thereof. Preferred silicone gums for use in the present invention are silicone gums having a molecular weight of about 200,000 to about 4,000,000 selected from dimethiconol, dimethicone, and mixtures thereof.

Preferably, the silicone phase herein comprises a silicone gum that is incorporated into the composition as part of a silicone gum-oil blend. When the silicone gum is incorporated as part of a silicone gum-oil blend, the silicone gum is preferably about 5% to about 40%, especially about 10% to 20% by weight of the silicone gum-oil blend. Configure. Suitable silicone gum-oil blends herein consist essentially of:
(Ii) a silicone having a molecular weight of about 200,000 to about 4,000,000 selected from dimethiconol, fluorosilicone and dimethicone, and mixtures thereof; and (ii) a carrier that is a silicone oil comprising about 0 .65 mm ² . s ⁻¹ to about 100 mm ² . consisting of a carrier having a viscosity of s ⁻¹ ,
In this case, the ratio of i) to ii) is about 10:90 to about 20:80, and the component based on the silicone gum is about 100 mm ² . s ⁻¹ to about 100,000 mm ² . s ⁻¹ , preferably 500 mm ² . s ⁻¹ to about 10,000 mm ² . It has a final viscosity of s- ¹ .

Particularly preferred silicone gum-oil blend base components for use in the compositions of the present invention include dimethiconol gum having a molecular weight of about 200,000 to about 4,000,000, and a viscosity of about 0.65 to 100 mm ² . s ^-1 silicone oil carrier. Examples of this silicone component are Dow Corning Q2-1503 (85% 5 mm ² .s ^-1 dimethicone fluid / 15% dimethiconol), available from Dow Corning, and Dow -Corning (Dow Corning) Q2-1501.

  The composition of the present invention comprises an emollient material comprising a branched chain hydrocarbon having a weight average molecular weight of about 100 to about 15,000, preferably about 100 to 1000; a compound of formula I:

（式中、Ｒ¹は、Ｈ又はＣＨ₃から選択され、Ｒ²、Ｒ³及びＲ⁴は独立してＣ₁〜Ｃ₂₀の直鎖又は分枝鎖アルキルから選択され、及びｘは１〜２０の整数である）；及び式（ＩＩ）を有する化合物：

Wherein R ¹ is selected from H or CH ₃ , R ² , R ³ and R ⁴ are independently selected from C _{1 to} C ₂₀ straight or branched alkyl and x is 1 to A compound having the formula (II):

（式中、Ｒ⁵は、任意でヒドロキシ又はＣ₁〜Ｃ₄のアルキル置換ベンジルから選択され、及びＲ₆はＣ₁〜Ｃ₂₀の分枝鎖又は直鎖アルキルから選択される）；及びそれらの混合物を含むことができる。

Wherein R ⁵ is optionally selected from hydroxy or C ₁ -C ₄ alkyl-substituted benzyl, and R ₆ is selected from C ₁ -C ₂₀ branched or straight chain alkyl; and Can be included.

  Branched chain hydrocarbons suitable for use in the present invention include isododecane, isohexadecane, isoeicosane, isooctahexacontane, isohexapentacontahectane, isopentacontaoctane, and mixtures thereof. A branched chain aliphatic hydrocarbon suitable for use herein is the trade name Permethyl®, Presperse Inc. (PO Box 735, South Plainfield, USA). NJ07080, USA)). Suitable ester emollients of the formula I above include methyl isostearate, isopropyl isostearate, isostearyl neopentanoate, isononyl isononanoate, isodecyl octanoate, isodecyl isononanoate, tridecyl isononate. These include nanoate, myristyl octanoate, octyl pelargonate, octyl isononanoate, myristyl myristate, myristyl neopentanoate, myristyl octanoate, myristyl propionate, isopropyl myristate, and mixtures thereof. It is not limited. Suitable ester emollients of formula (II) include, but are not limited to, C12-15 alkyl benzoates.

Preferred emollients for use herein include isohexadecane, isooctacontane, isononyl isononanoate, isodecyl octanoate, isodecyl isononanoate, tridecyl isononanoate, myristyl octanoate, Octyl isononanoate, myristyl myristate, methyl isostearate, isopropyl isostearate, C12-15 alkyl benzoates and mixtures thereof. Particularly preferred emollients for use in the present invention are isohexadecane, isononyl isononanoate, methyl isostearate, isopropyl isostearate, or mixtures thereof. A further emollient suitable for use in the composition of the present invention is petrolatum.
The emollient material is preferably present in the composition at a concentration of about 0.1% to about 10%.

The present compositions herein will usually preferably contain emulsifiers and / or surfactants to help disperse and suspend the discontinuous phase in the continuous phase. Surfactants can also be useful if the product is intended for skin cleansing. For convenience, emulsifiers are hereinafter referred to by the term “surfactant” and thus “surfactant” is a surface used for emulsifier or other surfactant purposes such as skin cleansing. It shall be used to represent an activator. Known or conventional surfactants can be used in the composition provided that the selected surfactant is physically and chemically compatible with the essential components of the composition and provides desirable properties. Suitable surfactants include silicone materials, non-silicone materials, and mixtures thereof.
The compositions of the present invention preferably comprise from about 0.05% to about 15% surfactant or mixture of surfactants. The exact surfactant or surfactant mixture selected will depend on the pH of the composition and other components present.

Preferred surfactants are nonionic. Nonionic surfactants useful herein include those broadly defined as condensation products of long chain alcohols, such as condensation products of C _8-30 alcohols and sugar or starch polymers. That is, there are glycosides. Such compounds can be represented by the formula (S) _n —O—R, where S is a saccharide moiety such as glucose, fructose, mannose, and galactose; n is from about 1 to about 1000 And R is a C _8-30 alkyl group. Examples of long chain alcohols from which alkyl groups can be derived include decyl alcohol, cetyl alcohol, stearyl alcohol, lauryl alcohol, myristyl alcohol, oleyl alcohol, and the like. Preferred examples include mixtures of cetearyl glucosides and cetearyl alcohols, which are from Seppic to Montanov 68® and from Henkel to Emulgade. It is commercially available as PL68 / 50 (registered trademark).

Other useful nonionic surfactants include condensation products of alkylene oxides and fatty acids (ie, alkylene oxide esters of fatty acids). These materials have the general formula RCO (X) _n OH, where R is a C _10-30 alkyl group, X is —OCH ₂ CH ₂ — (ie, derived from ethylene glycol or oxide) or —OCH ₂ CHCH ₃ — (ie, derived from propylene glycol or oxide) and n is an integer from about 6 to about 200. Other nonionic surfactants are condensation products of alkylene oxides and 2 moles of fatty acids (ie, alkylene oxide diesters of fatty acids). These materials have the general formula RCO (X) _n OOCR, where R is a C _10-30 alkyl group, X is —OCH ₂ CH ₂ (ie, derived from ethylene glycol or oxide), or —OCH ₂ CHCH ₃ (ie, derived from propylene glycol or oxide) and n is an integer from about 6 to about 100. Other nonionic surfactants are condensation products of alkylene oxides and aliphatic alcohols (ie, alkylene oxide ethers of aliphatic alcohols). Such materials have the general formula R (X) _n OR ′, where R is a C _10-30 alkyl group, and X is —OCH ₂ CH ₂ — (ie, derived from ethylene glycol or oxide). ) Or —OCH ₂ CHCH ₃ — (ie, derived from propylene glycol or oxide), n is an integer from about 6 to about 100, and R ′ is H or a C10-30 alkyl group. Still other nonionic surfactants include alkylene oxides and fatty acids and fatty alcohols (ie, where the polyalkylene oxide moiety is esterified with a fatty acid at one end and an ether with an aliphatic alcohol at the other end. Both condensation products (ie, linked via an ether linkage). Such materials have the general formula RCO (X) _n OR ′, where R and R ′ are C _10-30 alkyl groups, and X is —OCH ₂ CH ₂ (ie, from ethylene glycol or oxide). Or -OCH ₂ CHCH _3- (derived from propylene glycol or oxide), and n is an integer from about 6 to about 100, for example, ceteth-6, ceteth-10, ceteth- 12, cetealess-6, cetealess-10, cetealess-12, steareth-6, steareth-10, steareth-12, PEG-6 stearate, PEG-10 stearate, PEG-100 stearate, PEG-12 stearate, PEG-20 glyceryl stearate, PEG-80 glyceryl tallowate, PEG-10 glyceryl stearate, PEG-30 glyce Examples include seryl cocoate, PEG-80 glyceryl cocoate, PEG-200 glyceryl tallowate, PEG-8 dilaurate, PEG-10 distearate, and mixtures thereof.

Still other useful nonionic surfactants include polyhydroxy fatty acid amide surfactants, which are described in further detail in PCT International Publication No. WO 98/04241.
Preferred nonionic surfactants are selected from the group consisting of steareth-2, steareth-21, cetealess-20, cetealess-12, sucrose cocoate, steareth-100, PEG-100 stearate, and mixtures thereof. Is.

Other nonionic surfactants suitable for use herein include sugar esters and polyesters, alkoxylated sugar esters and polyesters, C ₁ -C ₃₀ aliphatic alcohols C ₁ -C fatty acid esters of _30, of C ₁ -C ₃₀ alkoxylated derivatives of fatty acid esters of C ₁ -C ₃₀ aliphatic alcohols, alkoxylated ethers of fatty alcohols C1-C30, the C ₁ -C ₃₀ polyglyceryl esters of fatty acids, esters of C ₁ -C ₃₀ polyhydric alcohols, C ₁ -C ₃₀ ethers of polyhydric alcohols, alkyl phosphates, polyoxyalkylene fatty ether phosphates, fatty acid amides, Examples include acyl lactylates and mixtures thereof. Examples of such silicone-free surfactants include polysorbate 20, polyethylene glycol 5 soy sterol, steareth-20, cetealess-20, PPG-2 methyl glucose ether distearate, ceteth-10, polysorbate 80, polysorbate 60. Glyceryl stearate, sorbitan monolaurate, polyoxyethylene 4 lauryl ether sodium stearate, polyglyceryl-4 isostearate, hexyl laurate, PPG-2 methyl glucose ether distearate, PEG-100 stearate and mixtures thereof Is mentioned.

Useful herein other surfactants is a mixture of sorbitan or sorbitol fatty acid ester and fatty acid esters were mixed as the main component a mixture of sucrose fatty acid ester, the fatty acid preferably C ₈ -C _24, more preferably in each instance is a C ₁₀ ~C _20. A preferred fatty acid ester emulsifier is a mixture of sorbitan or sorbitol C ₁₆ -C ₂₀ fatty acid ester and sucrose C ₁₀ -C ₁₆ fatty acid ester, especially sorbitan stearate and sucrose cocoate. This is commercially available from ICI under the trade name Arlatone 2121.

Anionic surfactants are also useful in the compositions of the present invention. See, for example, US Pat. No. 3,929,678 (Laughlin et al., Issued December 30, 1975). Representative anionic surfactants include alcoyl isethionates (eg, C ₁₂ -C ₃₀ ), alkyl and alkyl ether sulfates and salts thereof, alkyl and alkyl ether phosphates and salts thereof, alkyl methyl taurates (e.g., C ₁₂ -C _30), and soaps of fatty acids (e.g., alkali metal salts such as sodium or potassium salt)) and the like.

Amphoteric and bipolar surfactants are also useful in the present invention. Examples of amphoteric and zwitterionic surfactants that can be used in the compositions of the present invention are those where the aliphatic radical can be straight or branched and one of the aliphatic substituents is from about 8 to about 22 carbon atoms. (Preferably C ₈ -C ₁₈ ) and one derivative of an aliphatic secondary and tertiary amine containing one anionic water-soluble group such as carboxy, sulfonate, sulfate, phosphate, or phosphonate It is widely described. Examples are alkyliminoacetates, and iminodiaalkanoates and aminoalkanoates, imidazolinium and ammonium derivatives. Other suitable amphoteric and zwitterionic surfactants are selected from the group consisting of betaines, sultaines, hydroxysultaines, alkyl sarcosinates (eg C ₁₂ -C ₃₀ ), and alkanoyl sarcosinates It is what is done.

The emulsion of the present invention may contain a silicone-containing emulsifier or surfactant. A wide variety of silicone emulsifiers are useful herein. These silicone emulsifiers are typically organically modified organopolysiloxanes, also known to those skilled in the art as silicone surfactants. Useful silicone emulsifiers include dimethicone copolyols. Such materials contain polyether side chains such as, for example, polyethylene oxide chains, polypropylene oxide chains, mixtures of such side chains and polyether chains containing moieties derived from both ethylene oxide and propylene oxide. Modified polydimethylsiloxanes. In other instances, dimethicone copolyols and alkyl-modified, i.e., compounds containing C ₂ -C ₃₀ pendant side chains. Still other useful dimethicone copolyols include materials having various cationic, anionic, amphoteric, and zwitterionic pendant moieties.
The composition of the present invention contains water. Preferably, the water comprises from about 30% to about 85%, more preferably from about 50% to about 75%, by weight of the compositions herein.

The composition of the present invention may optionally contain a particulate material. Suitable particulate materials herein include materials that are insoluble in both water and oil and have a median particle size of 1 μm to 50 μm. Preferably, the composition of the present invention comprises a particulate material having a refractive index of about 1.3 to about 1.7, a particulate material dispersed in the composition and having a median particle size of about 2 to about 30 μm. Suitable particulate materials are organic or organosilicone or inorganic. Preferred particles are free flowing solid materials. “Solid” means that the particles are not hollow. The voids in the center of the hollow particles can show an adverse effect on the refractive index and thereby the visible effect of the particles on the skin or composition. Suitable organic particulates are made of polymethylsilsesquioxane, polyamide, polyten, polyacrylonitrile, polyacrylic acid, polymethacrylic acid, polystyrene, polytetrafluoroethylene (PTFE) and poly (vinylidene chloride) Things. Copolymers derived from the monomers of the substances mentioned above can also be used. Examples of inorganic substances include silica and boron nitride. Representative commercial examples of particulate materials useful herein include Tospearl® 145, Orgasol 2002, Nylonpoly WL10, Dry Flo or It is a mixture of these.
The composition of the present invention may comprise from about 0.1% to about 5% by weight of particulate material.

  Another optional component is a neutralizing agent. Suitable neutralizing agents for neutralizing acidic groups containing hydrophilic gelling agents in the present invention include sodium hydroxide, potassium hydroxide, ammonium hydroxide, monoethanolamine, diethanolamine, aminomethylpropanol, tris. Buffers and triethanolamine are included.

  Further optional components may include sunscreens. Preferred among those sunscreens effective in the compositions of the present invention are 2-ethylhexyl p-methoxycinnamate, 2-ethylhexyl N, N-dimethyl-p-aminobenzoate, p-aminobenzoic acid, 2-phenylbenzimidazole-5-sulfonic acid, octocrylene, oxybenzone, homomenthyl salicylate, octyl salicylate, 4,4'-methoxy-t-butyldibenzoylmethane, 4-isopropyldibenzoylmethane, 3-benzylidene Selected from camphor, 3- (4-methylbenzylidene) camphor, titanium dioxide, zinc oxide, silica, iron oxide, Parsol MCX, Eusolex 6300, octocrylene, Parsol 1789, and mixtures thereof Is done.

  In general, sunscreens may comprise from about 0.5% to about 20% of the compositions useful in the present invention. The exact amount will vary depending on the sunscreen chosen and the desired sun protection factor (SPF). SPF is a commonly used photoprotective indicator for sunscreens against erythema. See Federal Register, Vol. 43, No. 166, pages 38206-38269 (August 25, 1978).

Other optional materials of the present invention include pigments that, when insoluble in water, contribute to and are included in the total concentration of oil phase components. Suitable pigments for use in the compositions of the present invention can be organic and / or inorganic. The term pigment also includes materials that keep color and gloss low, such as matte finishes, and light scattering agents.
Further optional ingredients include oil-soluble active substances. Oil-soluble surfactants suitable for use herein include vitamin E and its derivatives, salicylic acid and other β-hydroxy acids, sun protection factors, fragrances and occlusive substances known in the art, and these Of the mixture.

  (Examples I to V)

  (Examples VI to IX)

１．エマルゲード（Emulgade）：供給元：コグニス・ドイチランド社（Cognis Deutchland GmbH）（独デュッセルドルフ（Paul-Thomas Strasse 56,D-4O551 Dusseldorf,Germany）
２．ＩＣＩ（英国クリーブランド（PO Box 9O、Wilton Centre、Middlesborough、Cleveland、England.TS6 8JE）供給のＰＥＧ１００ステアレート
３．スケア・ケミカルズ社（Scher Chemicals Inc,）（米国ニュージャージー州（Industrial West,Clifton,NJ O7O12））より供給
４．ルビゲル（Luvigel）ＥＭ：供給元：ＢＡＳＦ Ｐｌｃ（英国チェシア州（PO Box 4-Earl Road,Cheadle Hulme,Cheshire SK8 6QG））
５．サルケア（Salcare）ＳＣ９１：供給元：チバ・スペシャリティ・ケミカルズ（CIBA Speciality Chemicals）（英国チェシア州（Hulley Road,Macclesfield,Cheshire,SK1O 2NX））
６．ロードサーフ（Rhodasurf）：供給元：コルディック（Coldic）（英国ダビーシア州（Staisty Close,Homewood Trading Estate,Chesterfield,Derbyshire S42 5UG））
７．ボルポ（Volpo）３：供給元：クローダ・オレオケミカルズ（Croda Oleochemicals）（英国イーストヨークシャ（Cowick hall,Snaith Goole,East Yorkshire,Dn14 9AA））
８．ナイロンポリ（Nylonpoly）：供給元：オプティマ・ケミカルズ（Optima Chemicals）（英国ミドルセックス（Unit 17,Chiltern Business Village,Arundel Road,Uxbridge,Middlesex,UB8 2SN））
９．ドライ・フロ（Dry Flo）：供給元：ナショナル・スターチ・ケミカル・カンパニー（National Starch Chemical Company）（米国ニュージャージー州（1O,Finderne Avenue,Bridgewater,NJ O88O7,USA））
１０．及び１１．ＤＣ１５０３、ＤＣ９０４０：ダウ・コーニング（Dow Coming）、（英国バークシア（Kings Court,185 Kinds Rd,Reading,Berks,RGI 4EX））より供給。

1. Emulgade: Supplier: Cognis Deutchland GmbH (Paul-Thomas Strasse 56, D-4O551 Dusseldorf, Germany)
2. PEG100 stearate supplied by ICI (Cleveland, UK (PO Box 9O, Wilton Centre, Middlesborough, Cleveland, England. TS6 8JE) 3. Scher Chemicals Inc. (Industrial West, Clifton, NJ O7O12 )) Supply 4. Luvigel EM: Supplier: BASF Plc (Cesia, UK (PO Box 4-Earl Road, Cheadle Hulme, Cheshire SK8 6QG))
5. Salcare SC91: Supplier: CIBA Specialty Chemicals (Hulley Road, Macclesfield, Cheshire, SK1O 2NX)
6). Rhodasurf: Supplier: Coldic (Staisty Close, Homewood Trading Estate, Chesterfield, Derbyshire S42 5UG)
7). Volpo 3: Source: Croda Oleochemicals (Cowick hall, Snail Goole, East Yorkshire, Dn14 9AA)
8). Nylonpoly: Supplier: Optima Chemicals (Unit 17, Chiltern Business Village, Arundel Road, Uxbridge, Middlesex, UB8 2SN)
9. Dry Flo: Supplier: National Starch Chemical Company (1J, Finderne Avenue, Bridgewater, NJ O88O7, USA)
10. And 11. DC 1503, DC 9040: Supplied by Dow Coming, (Kings Court, 185 Kinds Rd, Reading, Berks, RGI 4EX).

The composition is prepared as follows:
An aqueous phase is prepared by mixing all water soluble ingredients except sodium hydroxide in water and heating to about 80 ° C. A second premix is prepared by mixing the oil soluble ingredients except silicone oil (DC1503) and heating to about 80 ° C. The oil phase is added to the aqueous phase and sheared to form an emulsion.

  The emulsion is cooled to 60 ° C., followed by addition of a polymeric thickener (Luvigel EM) and related anionic surfactants (Oles 3, Laures 7). For example, unless a sunscreen is included, then sodium hydroxide solution is added to neutralize to pH 6-7.5. At 45-50 ° C., benzyl alcohol, DC1503, dye and particles (including titanium dioxide and iron oxide) are added and the resulting product is sheared to ensure particle dispersion, deagglomeration and homogeneity And Thereafter, the composition can be cooled to 40 ° C. and perfume can be added. The product can then be prepared for packaging.

Example IX can be packaged in suitable cans pressurized with propane / butane / isobutene at 276 kPa (40 psi) and sold as a mousse.

Claims (17)

A cosmetic composition in the form of an oil-in-water emulsion, wherein the continuous aqueous phase comprises 0.1 to 2% by weight of the composition of a crosslinked copolymer,
i) 35% to 94.5% by weight of the crosslinked copolymer of a water soluble anionic monomer;
ii) 5% to 65% by weight of water-soluble nonionic acrylate monomer of the crosslinked copolymer; and iii) 0.005% to 0.5% by weight of bifunctional monomer crosslinking agent of the crosslinked copolymer;
A cosmetic composition, wherein the composition further comprises more than 10% by weight of the composition of a water-soluble skin benefit agent.   The cosmetic composition according to claim 1, wherein the crosslinked copolymer comprises 50% to 70% by weight of the crosslinked copolymer of a water-soluble anionic monomer.   The cosmetic composition according to claim 1 or 2, comprising 0.2% to 0.8%, preferably 0.3% to 0.7% by weight of the crosslinked copolymer of the composition.   The cosmetic composition according to any one of claims 1 to 3, wherein the water-soluble anionic monomer includes acrylic acid, methacrylic acid or a mixture thereof.   5. The water-soluble nonionic acrylate monomer according to any one of claims 1 to 4, wherein the water-soluble nonionic acrylate monomer includes acrylamide, methacrylamide, N-vinylpyrrolidone, water-soluble hydroxy-substituted acrylate ester or methacrylate ester, or a mixture thereof. The cosmetic composition as described.   The cosmetic composition according to any one of claims 1 to 5, wherein the bifunctional monomer crosslinking agent comprises methylenebisacrylamide, divinylpyrroline and allyl (meth) acrylate or a mixture thereof. The water-soluble skin benefit agent, a vitamin B ₃ compounds, wetting agents, panthenol and derivatives, amino acids, vitamin C compounds or mixtures thereof, the cosmetic composition according to any one of claims 1 to 6.   8. Cosmetic composition according to claim 7, wherein the water-soluble skin benefit agent comprises a wetting agent, preferably a polyhydric alcohol.   The cosmetic composition according to claim 8, wherein the water-soluble benefit agent comprises glycerin.   The cosmetic composition according to any one of the preceding claims, additionally comprising 0.05% to 15% by weight of a surfactant.   The cosmetic composition according to claim 10, wherein the surfactant comprises a nonionic surfactant.   The cosmetic composition according to claim 10 or 11, wherein the surfactant comprises a mixture of cetearyl glucoside and cetearyl alcohol.   The cosmetic composition according to any one of the preceding claims, additionally comprising 0.1% to 10% by weight of an emollient.   14. Cosmetic composition according to any one of the preceding claims, additionally comprising 0.1% to 5% by weight of a particulate material.   The cosmetic composition according to any one of claims 1 to 14, wherein the oil phase comprises 0.1 wt% to 60 wt% of the composition.   The cosmetic composition according to any one of the preceding claims, additionally comprising a silicone phase. 17. A cosmetic composition according to claim 16, wherein the silicone phase comprises a silicone gum / oil blend.